elizabeth loder, md, professor of neurology, harvard medical school; chief, division of headache, brigham & women's hospital. .
diane barrett: overall, the frozen was as good as fresh. and in some cases, some of the frozen fruits and vegetables were better than fresh. . .
the school in yarmouth that year had a low opt-out rate � 2 percent, the superintendent said � so there was a cap on the amount of disruption an illness could cause. .
it also recommends building more secure restrooms and hand-washing stations in areas where homeless people congregate. .
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